[TRNSYS-users] Trnsys equations

[massimo truant]

Good afternoon to all.
I want to write an equation with a division. My problem is that trnsys report me an error saying that the equation has a division by zero.
I put a condition (multiplying for an expression) that avoid the division by zero but it doesn’t work.

Someone could help me?

Thanks to all

Inviato da Posta per Windows 10

Da: David BRADLEY
Inviato: martedì 3 maggio 2016 15:46
A: TRNSYS users mailing list at OneBuilding.org; freppelw at noirot.fr
Oggetto: Re: [TRNSYS-users] Weather time step

Wirich,
   There are two basic Types that can be used to read weather data. 
Type15 is designed to read files that have a standard format (such as 
TMY2 or TMY3). Part of the standard format is a 1-hour timestep. If you 
modify a standard format weather file to have a different time step then 
it can no longer be read by Type15. Type9 can be used to read general 
weather data files. However, it does not have the solar radiation 
processing algorithms built into it as Type15 does. You'll need to use 
Type16 to process the results that are read by Type9.
kind regards,
  David


On 04/29/2016 09:20, freppelw at noirot.fr wrote:
> Hi everyone,
>
> As you know, the weather file for TRNSYS (TM2) is built with a 1 hour 
> time step.
>
> My question is: If I modify the weather file so that I have a time 
> step of 1 minute, would TRNSYS be able to execute the simulation? In 
> this case, is there a time step value to change in the program or is 
> it totally impossible?
>
> Thanks in advance.
>
> Wirich
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at lists.onebuilding.org
> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
>

-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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